Primer for internal-combustion engines.



D. A. STEININGER.

PRIMER FOR lNTERN'Ai'. COMBUSTION ENGINE-S.- APPLICATION FILED AUG. 6. 1914.

Patented Apr. 3, 1917.

I u 2: .16 I

l 8 j '22 I NO!!! mun wuum mm, o c

awe whom DARIUS A. STEININGEB,

or. Lsronru, INDIANA.

PRIMER FOB in'rnnnnt-connustrron enemas.

menace.

Specification of Letters Patent.

Patented Apr. 3,

Application filed August 6, 1914;, Serial No. 855,488. v

To all whom it may concern:

Be it known that l, DAniUs A. STEIN- INGER, a citizen of the United States, residing at Laporte, in the county of Laporte, and State of Indiana, have invented new and useful Improvements in Primers for Internal-Combustion Engines, of which the following is a specification.

This invention relates to primers for internal combustion engines, the object in view being to produce a device of the nature referred to which is adapted to be used in connection with any engine of the character noted for the purpose of insuring and rendering easy and safe the starting of the engine, the device being particularly valu able and efiicient in cold weather and at other times when it is a matter of difficulty to prime and start an internal combustion engine with the aid of the ordinary carbureter.

The invention hereinafter described is in the nature of an improvement upon the construction disclosed in my pending application Serial No. 829,608 filed April 1, 191 1, means being employed for divertingor defleeting a portion of the compressed air passing through the main conduit and carrying said air into the bowl containing the primlng agent, whereby agreater pressure is obtained in said bowl and the priming agentmore effectively sprayed into the main conduit from whence it is forced under pressure and intermingled with the compressed air, into the combustion chamber or chambers of the cylinder or cylinders of the engine.

\Vith the above and other objects in view, the invention consists in the novel construction, combination and arrangement of parts, as herein described, illustrated and claimed.

In the accompanying drawings:

Figure 1 is a plan view of the priming device of this invention.

Fig. 2 is a central vertical longitudinal section through the same. v

Fig. 3 is an end view thereof looking toward the discharge end of the priming device.

The primer contemplated in this inven tion embodies a main conduit 1 preferably in the form of a pipe or tube having an entrance elbow 2 adapted to have a compressed air connection attached thereto, said elbow being shown as threaded at 3 for that purpose. The'elbow contains an internal valve seat 4 in conjunction with which works; a. compressed air admission valve. The stem of this valve'extends through a guide. opening 6 in the top wall of the main conduit and said stem indicated at 7 has a jointed connection at 8 with the valve oper ating means which is shown in the form of a lever 9 one end of which is pivotally connected at 10 to an oscillatory fulcrum post 11' pivotally connected at 12 to a lug on the outside of the conduit 1. A coiled expansion spring 14' is interposed between a boss 15 onthe conduit 1 and a flanged collar 16 on the stem v7, said spring acting to hold the admission valve normally closed. By pressing on the levcr9, the operator may unseat .the admission valve and permit the air'under pressure from any storage tank or source of supply to enter the conduit 1.

Below the main conduit 1 and preferably formed integrally therewith is a cup 17 adapted to contain a priming agent of any kind such, for example, as gasolene, the priming agent being introduced into said cup through a filling opening 18 normally closed by means of a filler plug 19. 20 designates a primer intake tube extending vertically from the main conduit 1 downwardly within the cup 17 and terminating above the bottom of the cup as shown in Fig. 2. The bore 21 of said tube terminates at its point of junction with the interior of the conduit 1 in a valve seat 22. In conjunction with the valve seat 22 I employ a regulating valve 23 shown in the form of a needle valve which is threaded through and adjustable in a boss 24 extending upwardly from the top of the conduit 1. The needle valve is provided with an operating head 25 by means of which it may be adjusted.

The main conduit 1 is provided along the upper side and one of the side walls thereof with an extension 26 in which is formed a compressed air passage 27, said passa e communicating at its receiving end with t e conduit 1. near the top of the latter and extending therefrom into the top of the cup 17 so as to carry the air pressure into said cup above the priming agent. In rear of the receiving end of the passage 27 there is arranged a deflector 28 shown in the form of a plate, lip or web projecting from the top of the conduit 1 toward the bottom thereof any suitable distance, said deflector serving to divert a portion of the compressed air as it enters the main conduit and direct the same through the passage 27'into the cup 17. The passage 27 is of suliicient area in cross section to cause an excess of pressure of air therein over the air pressure around the regulating valve 23. This insures the foreing ofthe priming agent from the cup 17 upwardly through the'bore 21 and into the main conduit 1, said priming agent being sprayed or spread by the valve 23 and scattered throughout the conduit 1 where it is taken up by the onrushing air and carried with and by the compressed air into the combustion chamber of the engine cylinder.

The discharge end of the conduit 1 is threadedas shown at 29 to receive a suitable pipe connection (not shown) to the engine,

' which connection is ordinarily fitted with a sion valve is opened. The inrushing air un-- back pressure check valve (also not shown).

The operation of the primer may be described as follows. With the piston of the engine cylinder in firing position, the admis- ,ture under pressure. The admission valve being then closed, a spark is generated in the combustion chamber, exploding the mixture andstarting the engine. By arranging the passage 27 and the deflector 28 in the manner shown and described, engines ranging from very small to very large H. P. may be started with the same priming device or rather with a priming device of the same size thus doing away with the necessity of carrying a large number of diiferent sizes in stock.

VVhat I claim is In a primer for internal combustion engines, a compressed air conduit, a spring seated admission valve for said conduit, a bowl located below said conduit and extended laterally to the side of the conduit Where it is provided with a filling orifice adapting it to be filled with a. priming agent, a regulating valve the stem of which extends diametrically and downwardly through Said conduit and. is operable from above the top thereof for admitting the priming agent from said bowl to said conduit, said valve having a conical face acting to spread the priming agent, the primer being formed with a passage leading from the upper por tion of saidconduit into the upper portion of said bowl, a stationary deflector arranged back of the entrance to said passage and obstructing only the upper portion of said conduit, and means for opening said admission valve.

In testimony whereof I aflix my signature in presence of two witnesses.

DARIUS A. STEININGER. lVitnesses J AMES R. KoEHL, BENNETT S. J ONES.

popies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' r Washington, D, 0. 

